Super cheap, non-stop flights from Barcelona, Spain to Boston, USA for only €172 roundtrip. Also works in reverse (for $259 roundtrip).
Non-stop Christmas and New Year flights from Lisbon or Porto, Portugal to European cities from only €21 one-way with TAP Portugal.
Christmas flights from Spanish cities to Tokyo, Japan for only €398 roundtrip with Turkish Airlines.
Super cheap flights from many Spanish cities to Morocco from only €9 roundtrip.
Christmas flights from Spanish cities to Zanzibar, Tanzania from only €369 roundtrip with Turkish Airlines.
Cheap flights from Barcelona, Spain to Mexico City, Mexico for only €333 roundtrip with Alitalia.
Cheap flights from Barcelona, Spain to Monterrey, Mexico for only €341 roundtrip with Air France.
Cheap flights from Madrid or Barcelona, Spain to Salvador, Brazil from only €375 roundtrip with TAP Portugal.
Cheap flights from Barcelona, Spain to San Juan, Puerto Rico for only €393 roundtrip with Delta.